This is the coding and I find something is missing & it doesn't work. Who can find the puzzle here: <script src="mouseover_popup.js" language="JavaScript" type="text/javascript"></script> <body> <img src="smallpic.JPG" border="0" onmouseover="showtrail('largepic.JPG', 'Title of the Picture',390,530)" onmouseout="hidetrail()"> </body>